/Engine/Plugins/Runtime/MeshModelingToolset/Source/ModelingComponentsEditorOnly/Public/Scene/LevelObjectsObserver.h
Note that it is not possible to guarantee thatOnActorRemoved()fires before an Actor is GC'd. So, listeners should maintain TWeakObjectPtr<>'s on Actors if they need to know this information.
class FLevelObjectsObserver : public [FEditorUndoClient](API\Editor\UnrealEd\FEditorUndoClient)
TSet<AActor&#...
Actors
FActorAddRemove...
OnActorAdded
OnActorAdded is emitted when a new Actor is detected
FDelegateHandle
OnActorAddedHandle
FDelegateHandle
OnActorDeletedHandle
FDelegateHandle
OnActorListChangedHandle
FActorAddRemove...
OnActorRemoved
OnActorRemoved is emitted when an existing Actor is destroyed.
UWorld*
World